A319 flight crew reported executing go around during approach due to autoflight system and both fmgs...

Attributes
ACN	1655908
Time
Date	201906
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Visual Approach
Flight Plan	IFR
Component
Aircraft Component	Autoflight System
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

A go-around was initiated during visual approach to xxl in ZZZ following unexpected disconnection of auto pilot; unable to manage speed; and fault indications we think were associated with mels. Decision was made to go-around at about 800 ft above tdze (touchdown zone elevation). Nav data was lost during go-around so we requested vectors for a visual back to xxl and landed. Altitude was exceeded by 275 feet during the downwind vector and speed reached 267 KIAS at 7000 MSL while attempting to re-engage the auto pilot and auto thrust. Landing was made without incident. Associated faults listed on the maintenance printout included; flight/control second 3 fault; flight/control; anti ice stby pitot; auto flight ap (autopilot)/ a/thr (autothrottle) off; cab pr ldg elev fault; left/G system disagree; and vent blower fault. Left/G system disagree and vent blower fault were displayed on ECAM (electronic centralized aircraft monitor) during landing roll. Second 3 and anti ice stby pitot were MEL'd. Flight crew is unsure about what caused the malfunctions. Better communication and more efficiency reducing level of automation would have helped during the go-around procedure.

Original NASA ASRS Text

Title: A319 flight crew reported executing Go Around during approach due to Autoflight system and both FMGSs failures. The Go Around provided unexpected challenges to the flight crew.

Narrative: A go-around was initiated during visual approach to XXL in ZZZ following unexpected disconnection of auto pilot; unable to manage speed; and fault indications we think were associated with MELs. Decision was made to go-around at about 800 ft above TDZE (Touchdown Zone Elevation). Nav data was lost during go-around so we requested vectors for a visual back to XXL and landed. Altitude was exceeded by 275 feet during the downwind vector and speed reached 267 KIAS at 7000 MSL while attempting to re-engage the auto pilot and auto thrust. Landing was made without incident. Associated faults listed on the maintenance printout included; FLT/CTL SEC 3 Fault; FLT/CTL; Anti Ice Stby Pitot; Auto FLT AP (Autopilot)/ A/THR (Autothrottle) Off; Cab PR LDG Elev Fault; L/G SYS Disagree; and Vent Blower Fault. L/G SYS disagree and Vent Blower Fault were displayed on ECAM (Electronic Centralized Aircraft Monitor) during landing roll. SEC 3 and Anti Ice Stby Pitot were MEL'd. Flight crew is unsure about what caused the malfunctions. Better communication and more efficiency reducing level of automation would have helped during the go-around procedure.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

A319 flight crew reported executing go around during approach due to autoflight system and both fmgss failures. The go around provided unexpected challenges to the flight crew.